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Finding the Fourth Proportional to 14,154, 21,231 and 4,426

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Solution

The fourth proportional to 14,154, 21,231 and 4,426 is: 6,639

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154 : 21,231 = 4,426 : x
  2. Step 2: Convert to fraction form
    14,154/21,231 = 4,426/x
  3. Step 3: Cross multiply
    14,154x = 21,231 × 4,426
  4. Step 4: Simplify right side
    14,154x = 93,968,406
  5. Step 5: Solve for x
    x = 93,968,406/14,154
  6. Step 6: Final answer
    x = 6,639

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.